create objects of class Line or Lines

create objects of class Line or Lines from coordinates

Line(coords)
Lines(slinelist, ID)

Arguments

coords

2-column numeric matrix with coordinates for a single line

slinelist

list with elements of class Line-class

ID

a single word unique character identifier, character vector of length one

Value

Line returns an object of class Line-class; Lines returns an object of class Lines-class

Examples

# from the sp vignette:
l1 = cbind(c(1,2,3),c(3,2,2))
l1a = cbind(l1[,1]+.05,l1[,2]+.05)
l2 = cbind(c(1,2,3),c(1,1.5,1))
Sl1 = Line(l1)
Sl1a = Line(l1a)
Sl2 = Line(l2)
S1 = Lines(list(Sl1, Sl1a), ID="a")
S2 = Lines(list(Sl2), ID="b")